27 JUL 2018 by ideonexus
The Great Lifespan Escape
At the time when the lines begin, in the mid-18th century, life expectancy in Europe and the Americas was around 35, where it had been parked for the 225 previous years for which we have data.3 Life expectancy for the world as a whole was 29. These numbers are in the range of expected life spans for most of human history. The life expectancy of hunter-gatherers is around 32.5, and it probably decreased among the peoples who first took up farming because of their starchy diet and the diseases ...28 DEC 2016 by ideonexus
The Staggering Amount of Progress Made in Recent History
BOOKS BOOK REVIEWS 'Millennium' is full of gratitude for the staggering advances of 1,000 years csmonitor icon Latest News Save for later Subscribe One of the most bracing aspects of 'Millennium' is the breadth of factors it covers, from food production to sanitation conditions to the Christian Church Militant to the development of firearms to radical changes in transportation of both people and products. By Steve Donoghue NOVEMBER 24, 2016 Save for later View CaptionAbout video adsView Cap...18 MAY 2012 by ideonexus
Jupiter's Pattern in the Night Sky
Every 12 years Jupiter returns to the same position in the sky; every 370 days it disappears in the fire of the Sun in the evening to the west, 30 days later it reappears in the morning to the east...Folksonomies: astronomy
Folksonomies: astronomy
4th Century BC observation from Gan De.